Mineral - Plancheite
Plancheite
Chemical Properties
Mineral Class
Silicates
Toxicity
none
Formula
Cu₈(Si₈O₂₂)(OH)₄ · H₂O
Unit Cell
Physical Properties
Hardness
6
Streak
blue
Density
Cleavage
Fracture
Tenacity
Optical Properties
Color
blue
Birefringence
Luster
Silky
Transparency
Pleochroism
Geomineralogical Properties
Crystal System
orthorhombic
Point Group
Space Group
Habit
crusty, spherical, acicular, grape-shaped
Formation
Oxidationszone von Kupfer-Lagerstätten
Paragenesis
Twinning
Rarity
Rather rare
Synonyms
Plancheite